Relay Timer R1X is programmable timer software for setting timing features of the relay. It works with 1-channel relay controller boards of National Control Devices (NCD), Robot Electronics, and Velleman. It works for relay boards with Serial Port/USB and Network interface. The connection status is detected and shown continuously. Relays can be turned on/off manually and automatically. The current status of relay is updated and displayed simultaneously. Customized schedule setting makes it more powerful and flexible to control relays automatically. Relay can be controlled remotely by from other computers. It can be set to auto run after login Windows. It can also be launched by command line with specified configuration file or schedule setting file. It controls relay with very precise timer, while consuming the processor's resource at very low level.